Central axis (2), the point (3) and the aforementioned central axis (2) and the same axis or the air of balance to include (5), lap the wall (12) the cannula which decides (1),A) the aforementioned cannula (1), in intersection direction, the description above lap the wall (12) penetrates in the aforementioned central axis (2), at least two perforations (8) furthermore implicationB) the aforementioned air (5) opens with the aforementioned point (3)C) the aforementioned air (5) the cross section the contraction which possesses diameter d i has (6), that the aforementioned point which is formed the description above at least two perforations (8) the foremost section and the wire (7) as guidance of for the sake of (3) is located between.The cannula of this kind (1) and the wire (7) the device for liquid jet irrigation of the bone which is included (10).< Selective figure >Figure 1中央軸線(2)、先端(3)及び、前記中央軸線(2)と同軸または平行の中空(5)を含み、周壁(12)を定めるカニューレ(1)であって、A) 前記カニューレ(1)は、前記中央軸線(2)に横断方向に、前記周壁(12)を貫通する、少なくとも2つの穿孔(8)を更に含み;B) 前記中空(5)は、前記先端(3)で開いており;C) 前記中空(5)の横断面は、直径diを有する収縮(6)を有し、それは前記少なくとも2つの穿孔(8)の最前部と、ワイヤ(7)のためのガイダンスとして形成される前記先端(3)との間に位置する。この種のカニューレ(1)及びワイヤ(7)を含んでいる骨の液体ジェット潅注用の装置(10)。【選択図】図1